Bundle-separator for threshing-machines.



L. K. GRYDER. BUNDLE SEPARATORTOR THRESHING MACHINES. APPLIOATION FILEDAUG. 13, 1912.

Patented Jan.7,19 13.

2 SHEETS-SHEET 1. I

- COLUMBIA PLANOGRAPH CO WASHXNGTON. D. Cl

L.K.GRYDER. BUNDLE SEPARATOR FOR THRESHING MACHINES.

APPLIOATION FILED AUGJS, 1912. v

1,049,81 O. Patented Jan. 7, 1913.

2 SHEETSSHEET 2.

l l 'l Louis K. CRYDER, or KINGSTON, OHIO.

BUNDLE-SEPARATOR FOR THRESHIN G-MAC HINES.

Specification of Letters Patent.

Patented Jan. 7, 1913.

Application filed August 13, 1912. Serial No. 714,872.

To alt w/wm 2'25 may concern Be it known that I, Louis K. CRYDER,citizen of the United States, residin at Kingston, in the county of Rossand tate of Ohio, have invented certain new and useful Improvements inBundle-Separators for Threshing-Machines, of which the following is aspecification.

' My invention relates to threshing machinery and particularly to thecylinders and concaves thereof.

The primary object of my invent-ion'is to provide means whereby thegrain may be. more thoroughly separated from the straw lpfore the strawpasses to the racks and rid- A still further object is to provide meansfor thoroughly separating the bundles of straw before the straw passesto the cylinder and concave, thus preventing a choking of the cylinderand rendering the resistance to the driving power more uniform.

A further object in this connection is to provide a threshing machinehaving a preliminary cylinder disposed above the usual cylinder andconcave and running at a slower speed but in the same direction as thelower or main cylinder, and to provide in connection therewith a feedingbelt which has a flight running vertically downward from a pointapproximately opposite the upper cylinder to a point approximatelyopposite the lower cylinder, this feeding belt running at a slower speedthan either of the other cylinders. My invention is illustrated in theaccom panying drawings wherein:

Figure 1 is a vertical section through the forward part of a threshingmachine showing the main cylinder, the auxiliary cylinder and thefeeding belt in elevation. Fig. 2 is a fragmentary plan View of the partshown in Fig. 1. Fig. 3 is a fragmentary detail view of one of thecylinders.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the accompanying drawingsby the same reference characters. Referring to these drawings, 2designates the framework of the forward portion of a threshing machine,it being understood that inasmuch as my invention does not lie in anyspecial supporting frame, I have not illustrated the details of thissupporting frame. Mounted in this supporting frame is a concave 3 of anysuitable construction and supported in any suitable manner, and

disposed immediately above the concave is the toothed cylinder 4, thedetails of construction of which will be hereafter described.

Mounted above the toothed cylinder 4 or main cylinder is an auxiliarycylinder designated 5 and constructed in the same manner. as the maincylinder and provided with a plurality of teeth, the teeth being soarranged as to be in alinement wit-h the teeth on the cylinder 4. Thecylinder 5 and the cylinder 4 rotate in the same direction, but thecylinder 4 rotates preferably at a speed about twice that of thecylinder 5. A feed belt or carrier 6 passes over a suitable roller 7supported at the forward end of the machine and having a sprocket wheel7 at one end. This belt passes upwardly and rearwardly to a roller 8disposed preferably in line with the axis of the cylinder 5 and having asprocket wheel 8 The feed belt passes over this upper roller 8, thenextends directly downward to form a vertical flight and then passes overa roller 9 disposed opposite the axis of the cylinder 4 and having asprocket wheel 9. After passing over the roller 9, the feed belt orcarrier passes upward and outward over a supporting roller 10 having asprocket wheel 10 and from thence passes back to the roller. 7, thuscompleting the cycle of the belt. This feed belt or carrier (thedetailed construction of which is immaterial and forms no part of myinvention) isprovided with upwardly projecting teeth so set that theywill pass between the teeth on the cylinder 5 and on the cylinder.

4. It will be understood, of course, that the belt is provided withtransversely extending rows of teeth as are the cylinders 4 and 5.

Suitable mechanism may be provided for driving this belt but I have notillustrated this mechanism in detail as it will be readily understood byany one conversant with the art. The belt is driven at a speed less thanthe speed of rotation of the cylinder 5 and consequently less than thespeed of rotation of the cylinder 4. Above the roller 8 are disposedband cutters 12.

The cylinder is covered by means of a hinged cover plate 11, and belowthe concave is disposed the stepped grain board 13 which is downwardlyinclined to the cleaning sieves 14. From the cleaning sieves 14 thegrain falls onto the grain board 15 from which it is carried to thegrain auger 16 which may be of any suitable'lconstruction and driven inany suitable way. Mounted in connection with the grain sieves so as todirect a blast of air between the grain sieves and the grain board 15,is a blower 17 of any suitable construction and driven in any suitablemanner.

Each of the cylinders 4 and 5 is formed with opposed heads 18 connectedby spokes to a central hub 19 and fast on the shaft 20. These heads areconnected by transverse bars 21 and by circumferentially extending bands22. As illustrated, there are twelve rows of teeth 23, each rowcontaining seven teeth. These teeth are preferably broadened at theirouter ends and as illustrated in Fig. 1 overlap the teeth of theconcave. The concave 3 is also formed with upwardly projecting teethdesignated 24: which are disposed in alternate relation to the teeth ofthe cylinder 4. The teeth 25 of the band as before stated are disposedin alternate relation to the teeth of the cylinders ft and 5 andslightly overlap the teeth of the cylinder 5.

The operation of my invention is as fol lows: The bundles of straw areplaced upon the feed belt and are carried upward and fed into the spacebetween the vertical flight of the feed belt and the upper cylinder 5.Here the bundles of straw with the grain thereon are forced by the feedchain against the rapidly revolving cylinder 5. Inasmuch as the cylinder5 is moving faster than the feed chain, the bundles are torn apart andseparated. The downwardly extending flight of the chain carries thisseparated straw downward and into contact with the cylinder 4 which asit very rapidly revolves, draws the straw away from the feed belt andcarries it between the cylinder 4 and the concave, thus finallyseparating the grain from the straw, the grain dropping down upon thegrain board 13. The straw then passes upward and is carried onto theracks 26 and from thence passes on through the machine in the ordinarymanner common to practically all threshing machines. It is finallyejected through the usual blower while the grain passes down and iscarried laterally by the grain auger l6 and is discharged through theusual grain chute.

It is to be understood that the teeth used upon the cylinders 4 and 5may be of any ordinary construction but that preferably these teeth arebolted in place upon the cylinders.

I have found in practice that my inven tion works extremely well andthat the preliminary whipping apart of the bundles acts to prevent thechoking up of the feed and causes a uniform feed, thus rendering moreuniform the resistance to the power. I have also found in practice thatsubjecting the straw to be threshed to the beating action of twocylinders, a preliminary cylinder and the usual cylinder acting inconjunction with the concave, acts to more thoroughly strip the grainfrom the heads than with the usual one cylinder and concave and so thatless grain passes with the straw to the raddle racks or other likedevices and thus a less percentage of grainis lost than with the usualconstruction.

WVhat I claim is:

1. In a threshing machine, the combination with a cylinder and concave,of an auxiliary cylinder mounted adjacent to the first named cylinderand rotating in the same direction, and a feed carrier having a flightextending downward in a plane in front of said cylinders.

2. In a threshing machine, the combination with a cylinder and concave,of a tooth auxiliary cylinder mounted immediately above the first namedcylinder and adjacent thereto and rotating in the same direction as thefirst named cylinder but at a less speed, and a toothed feed carrierextending to the auxiliary cylinder then downward in a plane in front ofthe said cylinders and then outward, the teeth of the feed carrieroverlapping the teeth of the auxiliary cylinder.

3. In a threshing machine the combination with a concave and a toothedcylinder coacting therewith, of an auxiliary cylinder disposedvertically above the main cylinder and provided with projecting teeth,said auxiliary cylinder moving in the same direction as the maincylinder, a supporting roller mounted diametrically opposite and infront of the auxiliary cylinder, a supporting roller mounteddiametrically opposite and in front of the main cylinder, an endlesscarrier mounted on said rollers and having a flight extending verticallydownward in front of said rollers, said endless carrier being providedwith teeth.

4. In a threshing machine the combination with a concave and a toothedcylinder operating therein, of an auxiliary cylinder disposed above thefirst named cylinder and having projecting teeth, and an endless feedcarrier having a flight extending vertically downward in front of theauxiliary cylinder and the main cylinder and having teeth arranged inalternate relation to the teeth of said cylinders and adapted to overlapthe teeth of the auxiliary cylinder.

In testimony whereof I affix my signature in presence of two witnesses.

LOUIS K. GRYDER.

WVitnesses:

C. C. MILLER, F. N. R. REDFERN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

